Before putting fresh reagent in the carboy, discard any small amount of remaining
reagent. To prepare the reagent refer to the procedure in Section 5.1. See Table 10-2 for
ordering information.
10.3.2 Sample and reagent tubing
Periodically inspect sample and reagent tubing for cracks and leaks. Replace tubing if it is
damaged.
After a period of time, the sample tubing may become plugged with suspended matter.
The tubing is flexible and difficult to clean mechanically. Plugged sample tubing is best
replaced.
Replacement tubing kits are available. See Table 10-2.
Reagent tubing is shown in Figure 10-3.
Replacing Reagent TubingFigure 10-3:
To replace reagent tubing:
Procedure
1.
Turn off sample and reagent pumps.
2. Luer fittings connect the reagent tubing to the pump. Disconnect the tubing by
turning the fitting in the direction of the arrows shown in Figure 10-5.
3. Disconnect the other end of the suction tubing from the barb on the reagent inlet
fitting in the bottom of the enclosure. Disconnect the other end of the discharge
tubing from the reagent injection tee.
4. Install the replacement tubing.
Maintenance
Instruction Manual 75
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